git: network.subr: Support IPv6 in ifconfig_getargs()

[Aaron LI]

commit 8cd2e0745d021c52ef70c667710cd638bf76cf3b
Author: Aaron LI <***@aaronly.me>
Date: Thu Oct 25 20:11:28 2018 +0800

network.subr: Support IPv6 in ifconfig_getargs()

Update the 'ifconfig_getargs()' to accept the address family option
to support the extraction of IPv6 arguments of an interface, which
is configured using 'ipv6_ifconfig_<ifname>="..."'.

Obtained from FreeBSD; but FreeBSD uses 'ifconfig_<ifname>_ipv6'.

Summary of changes:
etc/network.subr | 12 ++++++++----
1 file changed, 8 insertions(+), 4 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/8cd2e0745d021c52ef70c667710cd638bf76cf3b